sysdeps/unix/sysv/linux/tst-fanotify.c

   1 /* Basic fanotify test.
   2    Copyright (C) 2013-2014 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <errno.h>
  20 #include <fcntl.h>
  21 #include <stdio.h>
  22
  23 #ifndef HAVE_LINUX_FANOTIFY_H
  24
  25 static int
  26 do_test (void)
  27 {
  28   puts ("SKIP: missing support for fanotify due to old kernel headers");
  29   return 0;
  30 }
  31
  32 #else
  33
  34 #include <sys/fanotify.h>
  35
  36 static int
  37 do_test (void)
  38 {
  39   int fd, ret;
  40
  41   fd = fanotify_init (0, 0);
  42   if (fd < 0)
  43     {
  44       switch (errno)
  45         {
  46         case ENOSYS:
  47           puts ("SKIP: missing support for fanotify (check CONFIG_FANOTIFY=y)");
  48           return 0;
  49         case EPERM:
  50           puts ("SKIP: missing proper permissions for runtime test");
  51           return 0;
  52         }
  53
  54       perror ("fanotify_init (0, 0) failed");
  55       return 1;
  56     }
  57
  58   ret = fanotify_mark (fd, FAN_MARK_ADD | FAN_MARK_MOUNT, FAN_ACCESS
  59                        | FAN_MODIFY | FAN_OPEN | FAN_CLOSE | FAN_ONDIR
  60                        | FAN_EVENT_ON_CHILD, AT_FDCWD, ".");
  61   if (ret)
  62     {
  63       perror ("fanotify_mark (...) failed");
  64       return 1;
  65     }
  66
  67   puts ("All OK");
  68   return 0;
  69 }
  70
  71 #endif
  72
  73 #define TEST_FUNCTION do_test ()
  74 #include "../test-skeleton.c"